$blue = #3190e8;

wh($width, $height)
  width $width
  height $height

center()
  top 50%
  left 50%
  position absolute
  transform translate(-50%, -50%)

sc($size, $color)
  font-size $size
  color $color

ct()
  top 50%
  position absolute
  transform translateY(-50%)
